ellerbeck



Aug. 12, 1958 c, ELLERBECK 2,847,163

CENTRALIZER FOR OUTBOARD TENS-TRANSFER MECHANISM Filed July 27, 1953 2Sheets-Sheet 1 Aug. 12, 1958 G. c. ELLERBECK 2,847,163-

CENTRALIZER FOR OUTBOARD TENS-TRANSFER MECHANISM 2 Sheets-Sheet 2 FiledJuly 2'7, 1953 2,847,163 Patented Aug. 12, 1958 file Grant C.Ellerbeclr, ban Leandra, Calili, assignor to Friden, Inc., a corporationof California Application July 27, 1953, Serial No. 370,337

11 Claims. (Cl. 235 139) This invention relates to an improvement for anauxiliary tens-transfer mechanism of the gear train type, such asillustrated by the patent to Machado et al., No. 2,597,507, issued May20, 1952, and entitled Auxiliary Tens-Transfer Control Mechanism.

A primary object of the present invention is to provide an automaticcentralizing device for the outboard orders of an auxiliarytens'transfer mechanism of the type described in said patent, therebyavoiding errors due to accumulated inaccuracies in the gear trainresulting in overthrow or loss of a carry in the outboard orders.

Another object of the present invention is to provide a centralizingmechanism for the outboard orders of the register dials which isoperative only when a transfer into the outboard orders occurs.

Another object of the present invention is to provide an auxiliary, orfull, tens-transfer mechanism of the gear train type, such asillustrated in the aforementioned patent, in which the very exacttolerances in the gear train required in that form of transfer may beavoided.

Another object of the invention is to provide an outboard order dialcentralizing mechanism utilizing the sensing slides now used forautomatically aligning the dividend and the divisor in the Friden fullyautomatic calculating machine commercially available, described in thepatent of Anthony B. Machado et aL, No. 2,653,765, issued September 29,195 3, and entitled Dividend Aligning Mechanism.

It is conventional in commercial calculating machines to utilize akeyboard having a capacity of eight or ten orders and an accumulatorregister having about twenty orders for the accumulation of values. Insome commercial machines the respective orders of the accumulator areinterconnected by planetary, or crawl-type, tenstransfer mechanismswhich effect a full carry throughout the width of the accumulator. Othercalculators, such as the commercial machine utilizing the gear traintype of auxiliary transfer illustrated in the above-mentioned Patent No.2,597,507, have cyclically operable, power driven tens-transfermechanisms on the inboard orders of the machine. in such machines, thepassage of an inboard register dial between the O and 9 positions,either additively or subtractively, sets a transfer gear in the nexthigher order of the machine in line with a tenstransfer actuator, thelatter being power driven in timed relation to the actuating mechanism.Such a direct, power driven transfer terminates adjacent the highestorder of the keyboard; in the Friden machine with which theabove-mentioned patents are related, in the 12th order for a ten-orderkeyboard. In the auxiliary tenstransfer Patent No. 2,597,507 abovementioned, the higher orders of the register are provided with anauxiliary tens-transfer mechanism which includes a single tooth gear oneach of the accumulator dial shafts, which gear engages an idler as thedial passes between the 0 and 9 positions. The idler gear in turn ismeshable with a gear on the next higher order dial shaft. Thus when thedial of the lower order passes between the 0 and 9" position, the nexthigher dial is moved a single step in the same direction. The train ofgears is continued throughout the outboard orders of the register, i.e., from the 13th to the 20th orders in a twenty-order register. It isobvious that a train of gearing of this extent must be very accuratelymanufactured and very closely adjusted in order to insure the completecarry order of a unit from the 12th order of the register to the 20thorder thereof, and the problem becomes worse with wear on the variousportions of the gear train. I have found that the extreme accuracyrequired in the full carry, or auxiliary tens-transfer, mechanism of thesaid patent can be avoided, and all of the gears and other partsassociated therewith can be manufactured on the basis of ordinarymanufacturing tolerances, if poweroperated means is provided forpositively centralizing a dial approximately half way between the 12thand 20th order in a full-cycle position, every time the auxiliarytens-transfer mechanism is operated. Thus, my invention relates to animprovement in the transfer mechanism of the auxiliary tens-transferPatent No. 2,597,507 above mentioned utilizing an automatic poweroperated centralizing mechanism for the 16th or 17th order dials.

l have found that gear trains manufactured according to usualmanufacturing standards will be effective to effect a tens-transfer forfour orders, without losing it or without overthrowing. if that higherorder dial is then positively centralized accurately in the full-cycleposition, the highest order dials are also held in accurateregistration. Thus, a primary object of my invention is to provide animproved centralizing device for an interme diate outboard order of theregister.

The present invention is concerned with these and other objects whichwill become apparent from the following description of the preferredembodiment of the invention, which is shown in the accompanyingdrawings, in which: 1

Fig. l is a plan view of the outboard orders of the register of aconventional calculating machine embodying the Machado patents abovementioned, and particularly Patent No. 2,597,507, with my inventionapplied to the 17th order thereof.

Fig. 2 is a side view of the mechanism of my invention, such as appliedto the 17th order of Fig. 1, such as taken along the plane indicated bythe line 2-2 of Fig. 1.

Fig. 3 is a left side view of the operating mechanism of my invention,which preferably is mounted on the left side control plate, and shows aportion of the auxiliary transfer mechanism of said Machado Patent, No.2,597,507.

My invention is shown, for purposes of illustration, as embodied in acalculating machine of the kind described in the patent to Friden No.2,229,889, as modified by the auxiliary tens-transfer mechanism of thepatent to Machado et al., No. 2,597,507, and the division alignermechanism of Machado et al. No. 2,653,765. The mechanism of theaforesaid patents are now well known and will not be described exceptinsofar as is necessary for a full and complete understanding of myinvention.

The machines of said patents include a shiftable carriage 10 whichcomprises a main frame bar 11 and a front carriage rail 12interconnected by a suitable spacing plate 13. The accumulator registeris mounted in the carriage frame bar 11 and includes substantiallyvertical accumulator shafts 15 rotatabiy journalled therein. An accumulator gear 16 is atfixed to the lower end of the dial shaft 15 (seeFig. 3) and an accumulator dial 17 (Figs. 1 and 2) is mounted on theupper end of the shaft. The accumulator dial and shaft is driven by plusor minus gears carried by a digitation control spool (Fig. 3) that isslidably but nonrotatably mounted on a square 3'5 shaft 19, the squareshaft being given increments of ro tation as described in said patents.Each of the dial shafts is provided with a detent in order to hold it inproper ordinal position. This detent can be of any suitableconstruction, such as the star wheel 26 rigidly mounted on the shafts 15and the cooperating spring pressed ball 27 engaging the same.

Each dial shaft 15 is provided with a single tooth transfer cam 29mounted on the lower end thereof, adjacent the accumulator gear 16. Atransfer lever 21 is rotatably mounted on the lower face of the framebar 11, and is rocked by the passage of the cam 24) between the O and 9positions, in either direction of rotation. The transfer lever 21 isprovided with a downwardly extending ear 2?, which lies between a pairof flanges 23 mounted on the hub of a transfer gear 24', which is alsoslidably but non-rotatably mounted on the square shaft 19. Thus, whenthe accumulator dial 17 and shaft 15 passes between the and 9 positions,in either direction of rotation, the transfer lever 21 is rocked totranslate the transfer gear 24 and associated flanges 23 forwardly onthe square shaft 19. In this position the inboard transfer gears 24 areengaged by a single tooth transfer actuator gear (not shown), afterwhich the transfer gears are returned to their normal position. Thismain transfer mechanism, being operated through the square shafts 19,extends only through the inboard orders of the machine, which in themachine of said patents comprises a ten-order keyboard and ordinallyassociated actuators, and an additional actuator shaft 19 serving thellth and 12th orders of the register. These transfer mechanisms can bereferred to as the inboard, or main, transfer mechanisms and areeffective throughout the orders of the carriage aligned with the tenorders of the actuators and two additional orders.

In order to extend the transferring of units from one order of theregister to the next higher order thereof, in the outboard orders(higher than the 12th in the above-mentioned machine) an auxiliarytransfer mechanism is provided, as shown and described in the Machadoauxiliary tens-transfer Patent No. 2,597,507 above mentioned. Thismechanism briefiy comprises a single tooth transfer gear rigidly mountedon the dial shaft 15 in the 12th order of the register, and a unitarytransfer tootn and gear assembly for the 13th and all higher order dialshafts 15'. These assemblies include the single tooth gear 4d and aIO-tooth gear 43 formed on a single hub which is affixed to the dialshaft 15. As explained in said last-mentioned patent, in order toconserve space, the gear 43 is placed above the single tooth gear 40 inalternate orders and in the others the single tooth gear is placed abovethe lO-tooth gear 43. The single tooth gears are adapted to mesh withthe teeth of a lO-tooth coupling gear 41 mounted on a spindle 42 mountedin the forward side of the carriage frame bar. Thus, whenever the dialpasses between the 9 and 0 positions the single tooth of the singletooth gear 4t meshes with the teeth of coupling gear 41, giving it asingle increment of rotation. The coupling gear 41 in turn meshes withthe gear 43 on the next higher order dial shaft 15, whereby rotation ofthe coupling gear 4-1 efiects a similar rotation of the next higherorder dial shaft. Thus, a transfer between one order and the next isaccomplished through the single tooth gear 4t), coupling gear 41 anddriven gear on the next higher order. It is explained in said auxiliarytens-transfer Patent No. 2,597,507 that the gears if. and 43 are ofsufiicient width to enable the gear to mesh with the driving gear it inone order and the driven gear 33 in the next higher order. Normally, thegear 4-1 is biased into the plane of both the driven and the drivinggears of the register, but are held in a disengaged position by means ofa comb 44 in all operations of the machine except where operation of theextending shoulder 56.

auxiliary tens-transfer mechanism is necessary. It is explained in saidauxiliary tens-transfer Patent No. 2,597,507 that the bail 44 is rockedto a disabling position shown by a rail as the carriage is shiftedinboard, so that there can be no interference between the main transfermechanism and the auxiliary transfer mechanism. It is also explained insaid patent that the bail 44 normally is rocked to the disablingposition shown by means of a cam, not shown herein but shown in Fig. 5of said patent, on power shaft 70 operating through a follower linkagewhich blocks rocking of the comb 44 in all positions of the drive shaftexcept immediately before the end of a cycle. At this point the maintransfer mechanism is timed to effect a tens-transfer into the highestorder (conventionally the twelfth) of the main transfer mechanism,hereby the operation of the auxiliary transfer mechanism occurs only atthe end of a cycle, when the main transfer mechanism is effecting atransfer into the highest order controlled by the main transfermechanism. This controlled engagement is desirable in the commercialcalculating machine, but as it is has no effect upon the operation of myinvention, a description thereof will be omitted.

The auxiliary transfer mechanism of said Patent No. 2,597,507 isnormally associated with a division aligning mechanism shown anddescribed in said Machado Patent No. 2,653,765. Included in the divisionaligner mechanism are single notched cams (see Figs. 1 and 2) rigidlysecured to each of the outboard order dial shafts 15. A sensing finger51 having a nose 57 adapted to engage the notch 58 of the cam 50 isassociated with each of the outboard order dials. These sensing slides51 are provided with guide slots 52 which embrace pins, screws, or otherprojections 53 mounted on the spacing plate 13 and the forward ends areheld against lateral displacement by extending through suitable slots(not shown) formed in the front carriage rail 12. The sensing fingersare moved into meshing engagement with the cams 50 by means of acyclically operated sensing arm 54, the operation of which at thebeginning of a carriage shift cycle controls the termination of thealigner mechanism as described in said aligner Patent No. 2,653,765. Thesensing fingers 51 are provided with rightwardly extending shoulders 55which abut against leftwardly extending shoulders 56-of the next lowerorder sensing finger, so that whenever any one of the sensing fingersengages the periphery of the cam 50, all of the sensing fingers 51 tothe right thereof are held in their forward position. The centralizingmechanism of my invention in no way effects the operation of the alignermechanism of said dividend-divisor aligner Patent No. 2,653,765, or thenormal operation of the sensing fingers 51. However, I do utilize thesensing finger 51 of the 17th order to centralize the 17th order shaftand dial, by a power driven means, in order to centralize the registerdials both above and below that order.

In the preferred form of my invention I provide a slightly modifiedsensing finger for the 17th order, although this could be placed in the16th order just as well. The modified sensing finger of the 17th ordercomprises a sensing finger 151, generally of the same configuration asthe sensing fingers 51 except that it does not have the rightwardlyextending shoulder 55 or the leftwardly Immediately overlying thesensing finger 151, and in contact with it, is a second sensing finger152 which is of the same shape as the sensing fingers 51 except that thenose 57 has been deleted. Both fingers 151 and 152 are nested in slotsin the front carriage rail 12 and are provided with slots 52 whichembrace an elongated stud 153 (as shown in Fig. 2). In all of the othersensing fingers the heads of the studs 53 are close to the upper face ofthe sensing fingers 51, in order to prevent vertical displacement of thesensing finger from engagement with the cam 50. However, in

the 17th order the head of the stud 153 lies a considerable distanceabove the upper sensing finger 152 so that both fingers may be rocked ina vertical plane. The upper sensing finger 152 is provided with theshoulders 55 and 56, as in the conventional sensing fingers 51. However,the cooperating shoulders on the adjacent sensing slides are providedwith ears so as to engage the elevated shoulders on the upper slide 152,such as ear 155 on the rightwardly extending shoulder 55 of the nexthigher order and ear 156 on the leftwardly extending shoulder 56 of thenext lower order. Thus, the shoulders of the upper sensing slide 152cooperate with the shoulders of the adjacent sensing fingers, and iscontrolled by the sensing of a nonzero condition to the left thereofalthough the lower sensing finger 151 is free to move forwardly withoutregard to the adjacent sensing fingers. It will be noted, particularlyin Fig. 2 that the sensing fingers 51 and 151 and 152 are providedwith-a sloping face 60 which is necessarily formed in the sensingfingers so that they may lie upon the spacing plate 13 and pass throughthe slots in the intermediate section of the front rail 12. As bothsensing fingers 151 and 152 are provided with these sloping shoulders60, it is obvious that rearward motion of the upper sensing finger 152,as by rearward movement of the sensing finger 51 in the 16th order whena zero condition exists in all higher orders, will be operative to alsomove the sensing finger 151 rearwardly to sense the zero condition ofthe cam 50 in that order.

' The sensing finger 151 carries a downwardly extending pin 160 (seeparticularly in Fig. 2). A tension spring 161 tensioned between thelower end of the pin 160 and a spring seat formed in the front carriagerail 12 biases the pin forwardly, and the sensing finger 151 downwardly(counter-clockwise in Fig. 2). In this position the sensing finger 151will engage the cam 50. Associated with the pin 160 is the nose 162 of abail 163 which is pivotally supported on a pair of brackets 164 spanningthe separator plate 13 and the front carriage rail 12, by any suitablemeans such as rivets 165. Rocking of the bail, by a means to bepresently described, will be effective to cause the nose 162 to rock thepin 160 and sensing finger 151 (clockwise in Fig. 2), whereby the noseof the sensing finger will lie in the plane of a centralizing wheel 166rigidly mounted on the 17th order dial shaft 15, immediately above thecam 50. The rockl ing of the bail 160 is also operative to force thesensing finger 151 rearwardly into engagement with the centralizingwheel 1166, even though movement of the upper sensing finger 152 isblocked as by means of the car 155 on the next higher order sensingfinger being blocked against operation. As shown in Fig. 1, theperipheral ends of the teeth on the centralizing wheel 166 are angularlydisposed to complement the sharply pointed nose of the sensing finger151, so that if the dial shaft and wheel are displaced angularly up to18 from a true posir tion the force of the movement of the sensingfinger 151 is suflicient to cam the wheel 166 and the other partsmounted on the shaft around to the true angular position, thuscentralizing this dial shaft and also the dial shafts of the higher andlower adjacent orders. It can be noted at this point that thetranslation of the sensing finger 151 is very brief but forceful, andtakes place while the auxiliary transfer mechanism is inoperativecondition so that the positive centralizing of the one intermediate dialis sufficient to centralize all of the others of the outboard ordersthat are connected thereto at the time, such as through the gear trainincludingsingle tooth gear :0 and gears 41 and 43. It is important thatthis positive centralizing be effected at the time the auxiliarytransfer mechanism is in operative position (the three gears are in thesame plane), for it can be effective only when the various dials areinterconnected through the auxiliary transfer gearing. It is obviousthat this centralizing is an idle operation when the transfer does notextend so far, but it has been found to be very 8 effective to preventloss of a transfer or overthrow in the higher order dials when the gearsare manufactured with conventional tolerances.

The bail 163 is rocked immediately before the termination of a cycle,when a transfer becomes effective in any of the outboard orders, fromthe main drive of the machine. The mechanism for rocking the bail isshown particularly in Fig. 3. In its preferred form this mechanismcomprises a sharp-nosed cam 71 mounted on the left end of the driveshaft 70, immediately adjacent the left side auxiliary frame plate 35. Acam follower roller 72 is mounted on a bellcrank 73, and is adapted forcooperation with the cam 71 when a transfer takes place in the outboardorders. The bellcrank is mounted upon a long stud shaft, or spindle, 74,the bellcrank being biased toward the right (toward the frame plate 35)by a compression spring 75 seated between the hub of the bellcrank and acollar 76 on the outer end of the spindle 74. Normally the roller 72lies to the right of the plane of the cam 71, but when projected to theleft against the bias of spring 75 will lie in the plane of the cam 71.The parts are shown in the full-cycle position, the drive shaft and camrotating in a counter-clockwise direction. It is thus apparent thatimmediately before the end of a machine cycle the sharp nose of the cam'71 will engage the roller 72 (assuming the bellcrank has been projectedto the left) to rock the bellcrank 73 sharply.

The means for shifting the bellcrank 73 to the left against the force ofspring 75 will now be described. A lever arm 80 is pivotally mounted onthe left frame plate 35, adjacent the tens-transfer gear 24 in the highest inboard order of the machine. In Fig. 3 the arm 80 is shown aspivotally mounted on a screw stud 81. The arm 80 is provided with a stud82 riveted on the upper end thereof, which stud lies between the flanges23 on the transfer gear 24 of the highest inboard order of the machine.Thus, the operation of the transfer lever 21, by the transfer cam 20 inthe next lower order, will move the gear 24 forwardly to transferposition, and simultaneously therewith rocks the arm 80 (clockwise inFig. 3). The arm 80 is connected by means of a link 83 to a cam arm 84,likewise pivotally mounted on a frame plate 35, as by means of screwstud 85. The lower end of the cam arm 80 is provided with a laterallyextending cam face 86 normally lying immediately behind the vertical armof the bellcrank '73. Thus, when the arm 80 is rocked by thetens-transfer in the highest inboard order, the cam arm 84 is alsorocked, whereupon the cam face 86 engages the vertical arm of bellcrank73, pushing the bellcrank to the left so that the follower roller 72lies in the plane of cam 71. Such operation of the camming linkage shownand described takes place close to the end of a machine cycle, as thetransfer in the highest inboard order takes place at this time. Thus,the follower roller will be projected into the path of the nose on cam71 only immediately before the rise of the cam' approaches the positionof the roller 72. Thereupon, and immediately before the end of thecycle, the bellcrank arm 73 is rocked sharply (counter-clockwise in Fig.3). When the tens-transfer gear 24 is returned to its normally inactiveposition by conventional means not shown, the cam arm 84 is returned tothe normal position shown and the spring 75 returns the bellcrank 73 toits normally inoperative position.

The upper arm of the bellcrank 73 is provided with a slot 77 whichembraces a pin 9 rigidly mounted on a bifurcated slide 91. The slide @1is bifurcated, as at 92, to embrace a pin 93 rigidly mounted on anactuating slide lift). A relatively strong spring 94 is tensionedbetween the pins 99 and 93 so that reciprocation of the bifurcated slide91 (which must reciprocate cyclically with the oscillation of bellcrank73) is normally transferred to the actuating slide 100 on which the pin93 is mounted. However, if some part blocks operation of the slide 109,

7 the spring 94 can yield to prevent-breakage of the machine.

The actuating slide l'ttltl is provided with a pair of slots 101 whichembrace the stud 85 previously mentioned and a second stud 102 riveted,or otherwise rigidly secured, to the frame plate 35. Normally thisactuatng slide 109 will reciprocate synchronously with the bifurcatedslide 91, due to the force of spring 94. Normally the actuating slide 1%is biased to the forward position shown in Fig. 3 by means of arelatively light spring 193 tensiened between the stud and the stud 194on the actuating slide 100. The actuating slide 1% is provided with arearward extension terminating in a shoulder 105 normally lying adjacentthe forward edge of the bail 163. Thus, rotation of the cam 71, when atransfer is conditioned to occur from the inboard to the outboardorders, is effective to rock bellcrank 73 which, in turn, reciprocatesslides 91 and in unison to cause the shoulder 105 to engage the bail163, rocking the latter (clockwise in Figs. 2 and 3).

It will be noted that the bail 163 extends from adjacent the 12th orderof the register to the 17th order of the register, so as to be operatedwhenever the 13th to 17th orders, inclusive, lie outboard-of themachine. However, the auxiliary centralizing device of my invention isunnecessary when the 17th order of the machine lies inboard, for in thatevent the conventional auxiliary transfer mechanism of the MachadoPatent No. 2,597,507 above mentioned is sufficient to carry a transferaccurately throughout the remaining length of the register, regardlessof tolerances used in construction of the parts.

The operation of the mechanism of my invention is believed obvious fromthe previous description. However, it can be briefly summarized bypointing out that when the transfer mechanism of the next to the highestinboard order is conditioned for a transfer into the highest inboardorder (there being no digitation in these orders of the machine shown)the setting of the transfer gear 24 in the 12th, or highest, order isalso effective to rock the cam arm 34 (counter-clockwise in Fig. 3). Therocking of the arm $4 cams the bellcrank 73 outwardly (to the left),whereupon the follower roller 72 lies in the plane of the sharp-nosedcam ll-this translation of the bellcrank 73 to the left taking placeshortly before the end of a cycle. The nose of the cam 71 immediatelycontacts the roller 72, rocking the bellcrank 73 and reciprocating thebifurcated link 91 and actuating slide 100 in all normal conditions.However, if something blocks operation of the bail 163, the spring 94can yield to avoid breakage of the parts. tuating slide ltlil causes theshoulder 105 thereof to engage and rock the bail 163. Thus, rocking ofthe bail will take place whenever any one of the first five outboardorders (orders 13 to 17 in the embodiment shown) lie outboard of themachine, but is ineffective to rock the bail when all of these ordersare inboard. The rocking of the bail 163 causes the nose 162 to engagepin 16%, rocking it and the'sensing finger 151 (counterclockwise in Fig.2) so that the nose of the sensing finger lies in the plane of thecentralizing wheel 166, and then pushes the slide rearwardly so as toforcibly engage the nose of the sensing finger in the valleys betweenthe teeth on the centralizing wheel 166. By this means the 17th orderdial assembly is positively centralized in a correct angular positionwhenever that order dial lies outboard of tie machine. As mentionedabove, the centralizing of this dial is effective to properly centralizethe dials both above and below it so as to avoid loss of a carry, or toavoid overthrow in any part of the auxiliary transfer mechanism.Parenthetically, it can be noted that the operation of the sensing arm54 of the division aligner mechanism, previously mentioned, will notinterfere in any way with the operation of the finger 151 in centralizing the outboard orders during a tens-transfer operation. Thesensing finger 54 is operated under the con- The translation of the acttrol of a positively operated cam to cause operation of the sensing armat the beginning of a carriage shift cycle, while the centralizingmechanism of the present invention is operated only at the end of acycle in which a tenstransfer is made into the outboard orders.Therefore, the-two operations of the sensing finger 151 occur atdifferent portions of entirely different operating cycles so that noconflictis possible between them (see Patent No. 2,653,765, column 21,lines 14 to 43).

it will be understood that the machine shown and described herein is apreferred embodiment of my invention and that the mechanisms shown arecapable of considerable modification by persons skilled in the artwithout departing from the spirit and scope of this invention.

1 claim:

1 in calculating machine having an ordinally ar- :tualing mechanism, amotor for driving said mechanism,- a carriage shiftable with respect toactuating mechanism, a plurality of ordinully r 'iged re ister wheels insaid can 2, certain of said wheels lying inboard of said actuatingmechanism and others of said wheels lying outboard thereof, a maintransfer mechanism adjacent said actuating mechanism for effectingtransfers in the register wheels cooperating with said actuatingmechanism, and an auxiliary transfer mechanism for each of the re sterwheels lying outboard when the carriage in its end position andincluding normally disenga ed gearing positionable to interconnect saidoutb d reg" ter wheels for effecting tran therein and means open-.ed bythe highest order regis. wheel operated by said main transfer mechanismfor operating said auxiliary transfer mechanism, a motoroperated meansfor centralizing an outboard predetermined intermediate one of saidregister associated with said auxiliary transfer mechanism duringoperation of said auxiliary transfer mechanism.

2. In a calculating machine having ordinally arranged and differentiallyoperable drive means, a shiftable carriage, a plurality of ordinallyarranged register wheels in said carriage, a lower order group of saidwheels lying inboard of said drive means and a higher order group ofsaid wheels lying outboard thereof when the carriage is in its endposition, a main transfer mechanism for effecting tens-transfers in theregister wheels aligned with said drive means, and an auxiliary transfermechanism mounted on said carriage for effecting tens-transfers in theoutboard higher order group of register Wheels, the combination whichcomprises a member mounted in said carriage for centralizing anintermediate one of said higher order group of register Wheels, amotor-operated means for operating said centralizing member, means forrendering said motoroperated means ineffective whenever said member isshifted into alignment with said drive means, and means operated by thehighest order of said main transfer mechanism for conditioning saidmotoroperated means for operation.

3. In combination Withfl calculating machine having a frame, a motor, ashiftable carriage, a plurality of ordinally arranged register wheels insaid carriage, a lower order group of said wheels lying inboard of saidframe and a higher order group of said wheels lying outboard thereofwhen the carriage is in its end position, an ordinally arranged mainransfer mechanism for effecting transfers in the register .vheels fromtime to time lying inboard of said frame and an auxiliary transfermechanism mounted on said carriage for effecting transfers in theoutboard higher order register wheels, said last-named means including atransfer tooth connected for move ment with the highest order of thelower order group of wheels and each of the higher order wheels, atransfer gear on each of the higher order wheels, and a series ofcoupling gears for operatively connecting each transfer tooth with thetransfer gear in the next higher order of the register so as to enablethe transfer of a unit from one order to the next to be effectedthroughout ranged register Wheels in said carriage,.a lower order groupof said wheels lyinginboard of said drive means and a higher order groupof said wheels lying outboard thereof when the carriage is in its endposition, a motoroperated main transfer mechanism for effectingtransfers in the register wheels aligned with said drive means, and anauxiliary transfer mechanism mounted on said carriage for effectingtransfers in the higher order register wheels, the combination whichcomprises a toothed centralizing wheel on a predetermined intermediateone of the higher order Wheels, a reciprocable centralizing fingeradapted to engage the valleys between the teeth of said centralizingwheel, and an outboard motor-operated means for reciprocating saidfinger.

5. In a calculating machine having a frame, an ordinally arranged anddifferentially operable drive means mounted in said frame, a motor fordriving said drive means, a shiftable carriage, a plurality of ordinallyarranged register wheels in said carriage, certain of said wheels lyinginboard of said drive means and others of said wheels lying outboardthereof, motor-operated main tens-transfer mechanisms for effectingtransfers in the inboard register wheels, and an auxiliary tens-transfermechanism mounted on said carriage for chatting transfers in theregister wheels outboard of said drive means when the carriage is in itsend position, the combination which comprises a centralizing wheel on apredetermined one of the wheels associated with the auxiliary transfermechanism, a reciprocable centralizing finger adapted to engage the saidcentralizing wheel, a normally inoperative motor-operated means forreciprocating said finger, and means operated by the main tens-transfermechanism associated with the highest inboard order wheel forcontrolling operation of said motor-operated means.

6. In a calculating machine having ordinally arranged and differentiallyoperable drive means, a motor for operating said drive means, ashiftable carriage, a phzrality of ordinally arranged register wheels insaid carriage, the lower orders of said wheels lying inboard of saiddrive means and the higher orders of said wheels lying ontboard thereofwhen the carriage is in it main transfer mechanisms for effecting Iregister wheels lying inboard of said d i an auxiliary transfermechanism mounted on d riage for effecting transfers in the higher ordewheels, said last-named means including a lTIlllSfLi tooth connected formovement with the highest order of the lower order wheels and each ofthe higher order wheels, a transfer gear on each of the higher orderwheels, and a series of coupling gears for operatively connecting eachtransfer tooth with the transfer gear in the next higher order of theregister so as to enable the transfer of a unit from one order to thenext to be effected throughout the entire array of register wheels, thecom: bination which comprises a toothed centralizing wheel on anintermediate higher order wheel, a reciprocable centralizing fingeradapted to engage the valleys between the teeth of said centralizingwheel, and an outboard motor-operated means for reciprocating saidfinger substantially simultaneously with operation of the transfer toothof the then highest inboard order wheel.

7. In a calculating machine having a frame, an ordinally arranged anddifferentially operable drive means mounted in said frame, a motor foroperating said drive means, a shiftable carriage, a plurality ofordinally arranged register wheels in said carriage, the lower orders ofsaid wheels lying inboard of said drive means and the higher orders ofsaid wheels lying outboard thereof when the carriage is in ,its endposition, a motor-driven main transfer mechanism for effecting transfersin the register wheels lying inboard of said drive means, and anauxiliary transfer mechanism mounted on said carriage for effectingtransfers in the higher order register wheels, said last-named meansincluding a transfer tooth connected for movement with the highest orderof the lower order wheels and each of the higher order wheels, atransfer gear on each of the higher order wheels, and a series ofcoupling gears for operatively connecting each transfer tooth with thetransfer gear in the next higher order of the register so as to enablethe transfer of a unit from one order to the next to be effectedthroughout the entire array of register wheels; a centralizing gear onan intermediate one of said higher order wheels, a reciprocablecentralizing finger having a nose adapted to engage said gear, anormally inoperative motor-driven means for reciprocating said finger solong as the wheel with which such finger is associated lies outboard ofsaid drive means, and means controlled by the main transfer mechanismfor operating said power-operated means.

8. In a calculating machine having a frame, an ordinally arrangedactuating mechanism mounted in said frame, a motor for operating saidactuating mechanism, a shiftable carriage, a plurality of ordinallyarranged register 'wheels in said carriage, the lower orders of saidwheels lying inboard of said actuating mechanism and the higher ordersof said wheels lying outboard thereof when the carriage is in its endposition, motor-operated main transfer mechanisms for effectingtransfers in the inboard register wheels, and an auxiliary transfermechanism mounted on said carriage for effecting transfers in the higherorder group of register wheels said auxiliary transfer mechanismincluding a transfer tooth connected for movement with the highest orderof the lower order wheels and each of the higher order wheels, atransfer gear on each of the higher order wheels, and a series ofcoupling gears for operatively connecting each transfer tooth with thetransfer gear in the next higher order of the register so as to enablethe transfer of a unit from one order to the next to be effectedthroughout the entire array of register wheels, the combination whichcomprises a centralizing gear on a preselected one of said higher orderwheels, a reciprocable centralizing finger having a nose adapted toengage the interdental spaces of said gear, a motor-operated andcyclically operable cam on said frame, a cam follower normallydisengaged from said cam, interponent means on said carriage operated bysaid follower and operating the finger, and means operated by the maintransfer mechanisms for causing said follower to engage said cam.

9. In a calculating machine having an ordinally arranged actuatingmechanism, driving means for operating said actuating mechanism, aregister having a plurality of ordinally arranged register wheelsshiftable with respect to said actuating mechanism, main transfer meanscooperating with said actuating mechanism and severally operated by saiddrive means for effecting transfers in the register Wheels alignedtherewith, an auxiliarytransfer mechanism cooperating with the registerwheels not aligned with the main transfer means when the register is inan end position for effecting transfers in the register wheels notaligned with the main transfer means, said auxiliary means includingnormally disengaged gearing positionable to interconnect theirrespective register wheels and positioning means for positioning saidgearing in connecting relationship, and means operated by the highestorder register wheel aligned with said main transfer mechanism foroperating the auxiliary transfer mechanism in the orders not alignedwith said main transfer means, the combination which comprises acentralizing means controlled by operation of the main transfer means inthe highest order and operated by said drive means for centralizing apredetermined intermediate. one of said register wheels associated withthe auxiliary transfer mechanism during operation of said auxiliarytransfer means, said centralizing means being rendered inoperativewhenever said intermediate register wheel is aligned with said maintransfer means.

10. in a calculating machine having a motor, frame, an ordinallyarranged actuating mechanism men ted in said frame, a shiftablecarriage, a plurality of ordinally arranged register wheels in saidcarriage, a lower order group of said wheels lying inboard of said frameand a higher order group of said wheels lying outboard thereof when thecarriage is in its end position, a main transfer mechanism mounted insaid frame and driven by said motor for effecting transfers in theinboard group of register Wheels and an auxiliary transfer mechanismmounted on said carriage for effecting transfers in the higher ordergroup of register wheels, said auxiliary transfer mechanism includingnormally disengaged gearing positionable to interconnect said higherorder group of register wheels, positioning means for positioning theoutboard portion of said gearing in connecting relationship, and meansoperated by the highest order inboard register wheel for operating eachauxiliary transfer mechanism: a centralizing member adapted tocentralize a predetermined intermediate one of said higher orderregister wheels, and a motordriven operator effective to operate saidcentralizing memher during operation of the auxiliary transfer mechanismwhenever said member lies outboard of said frame.

11. In a calculating machine having a motor, a frame, an ordinallyarranged actuating mechanism mounted in said frame, a carriage shiftablewith respect to said frame, a plurality of ordinally arranged registerWheels in said carriage, certain of said wheels lying inboard of saidactuating mechanism and others of said wheels lying outboard thereof, amain transfer mechanism mounted in said frame and driven by said motorfor effecting transfers in the register Wheels cooperating with saidactuating mechanism, and an auxiliary transfer mechanism for the groupof register Wheels lying outboard when the carriage is in its endposition, said auxiliary transfer mechanism including normallydisengaged gearing positionable to interconnect said register Wheels foreffecting transfers therein, positioning means effective upon the orderslying outboard from time to time for positioning said gearing inconnecting relationship, and means operated by the highest orderregister wheel operated by said main transfer mechanism for operatingsaid auxiliary transfer mechanism: a centralizing member mounted on saidcarriage and adapted to centralize a predetermined intermediate one ofsaid register wheels associated with said auxiliary transfer mechanism,and a motor-driven operator for operating said mem her so long as saidmember lies outboard of said actuating mechanism.

References Cited in the file of this patent UNITED STATES PATENTS362,219 Koch n7 May 3, 1887 809,075 Rechnitzer Jan. 2, 1906 1,341,995Pitman June 1, 1920 2,597,463 Ellerbeck May 20, 1952 2,597,487 Hopkinset a1. May 20, 1952 2,597,488 Hopkins et al. May 20, 1952 2,597,507Machado et al. May 20, 1952 2,653,765 Machado Sept. 29, 1953

